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The functions are and .
Find .
The sum is the function defined by : .
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All possible values of is the domain of a function.
The expression under the square root (the radicand) must be nonnegative .
The domain of is .
Find .
The difference is the function defined by : .
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All possible values of is the domain of a function.
The expression under the square root (the radicand) must be nonnegative .
The domain of is .
Find .
The product is the function defined by : .
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All possible values of is the domain of a function.
The expression under the square root (the radicand) must be nonnegative .
The domain of is .
Find .
The quotient is the function defined by : .
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All possible values of is domain of a function.
The expression under the square root (the radicand) must be nonnegative .
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Find which number make the fraction undefined, create an equation where the denominator is not equal to zero.
The domain of is .
Find .
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Substitute in .
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Find .
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Substitute in .
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Find .
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Substitute in .
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Find .
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Substitute in .
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, domain is .
, domain is .
, domain is .
, domain is .
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